我们将不断地得出关于整体极值的某些有用的结果.We shall subsequently obtain some interesting results on global extrema.并研究了 功角 误差变化时极值的变化规律.It analysis the law of phasor error " change. "用此凸分析求条件极值的方法确定超静定结构的未知力,所得结果与其它方法完全相同.This is the method...
硼砂是矫正土壤缺硼的常用硼化合物.Borax is the compound commonly applied to the soil to correct boron deficiency.卡尔蒙提出的离子交换树脂处理硼的费用为0.12 ― 0.30美元/千加仑.Calmon has quoted ion exchange costs of $ 0.12 - 0 . 30 / 1000 gal for boron treatment....